PCSX-Reloaded is a PlayStation emulator based on PCSX-df, both of which are ultimately based on the now discontinued PCSX. PCSX-Reloaded improves on PCSX in several areas and should now be considered a solid competitor to ePSXe and pSX.

PSEmu Pro is the standard that all other PSX emulators have to live up to. While discontinued, it's use of a plugin standard has been adopted by all modern PSX emulators to date. Pick it up for a bit of nostalgia.

VGS is the second commercial PSX emulator to be released. Very high compatibility, but lacks many features of most modern PSX emulators, such as advanced 3d rendering. After Sony purchased Connectix, this emulator was discontinued and now it is no longer even supported.